Finding the Third Proportional to 239,775.50 and 358,016

Step by Step Solution

1. Step 1: Write the proportion equation
   239,775.50 : 358,016 = 358,016 : x
2. Step 2: Convert to fraction form
   239,775.50/358,016 = 358,016/x
3. Step 3: Cross multiply
   239,775.50x = 358,016 × 358,016
4. Step 4: Simplify right side
   239,775.50x = 128,175,456,256
5. Step 5: Solve for x
   x = 128,175,456,256/239,775.50
6. Step 6: Final answer
   x = 534,564.44